More: http://bmw.com/mperformance/4seriescoupe BMW M Performance Parts for the new BMW 4 Series Coupé. The ultimate expression of sporty driving pleasure: the new BMW 4 Series Coupé with BMW M Performance Parts celebrates its world premiere at the IAA 2013. Its components for drivetrain, chassis, aerodynamics and cockpit, developed with motor sport expertise, add a noticeable boost in driving dynamics and emphasise the vehicle's athletic vibrancy both inside and out.